drivers/clk/mediatek/clk-mt6779-cam.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2019 MediaTek Inc.
   4  * Author: Wendell Lin <wendell.lin@mediatek.com>
   5  */
   6
   7 #include <linux/clk-provider.h>
   8 #include <linux/platform_device.h>
   9 #include <dt-bindings/clock/mt6779-clk.h>
  10
  11 #include "clk-mtk.h"
  12 #include "clk-gate.h"
  13
  14 static const struct mtk_gate_regs cam_cg_regs = {
  15         .set_ofs = 0x0004,
  16         .clr_ofs = 0x0008,
  17         .sta_ofs = 0x0000,
  18 };
  19
  20 #define GATE_CAM(_id, _name, _parent, _shift)                   \
  21         GATE_MTK(_id, _name, _parent, &cam_cg_regs, _shift,     \
  22                 &mtk_clk_gate_ops_setclr)
  23
  24 static const struct mtk_gate cam_clks[] = {
  25         GATE_CAM(CLK_CAM_LARB10, "camsys_larb10", "cam_sel", 0),
  26         GATE_CAM(CLK_CAM_DFP_VAD, "camsys_dfp_vad", "cam_sel", 1),
  27         GATE_CAM(CLK_CAM_LARB11, "camsys_larb11", "cam_sel", 2),
  28         GATE_CAM(CLK_CAM_LARB9, "camsys_larb9", "cam_sel", 3),
  29         GATE_CAM(CLK_CAM_CAM, "camsys_cam", "cam_sel", 6),
  30         GATE_CAM(CLK_CAM_CAMTG, "camsys_camtg", "cam_sel", 7),
  31         GATE_CAM(CLK_CAM_SENINF, "camsys_seninf", "cam_sel", 8),
  32         GATE_CAM(CLK_CAM_CAMSV0, "camsys_camsv0", "cam_sel", 9),
  33         GATE_CAM(CLK_CAM_CAMSV1, "camsys_camsv1", "cam_sel", 10),
  34         GATE_CAM(CLK_CAM_CAMSV2, "camsys_camsv2", "cam_sel", 11),
  35         GATE_CAM(CLK_CAM_CAMSV3, "camsys_camsv3", "cam_sel", 12),
  36         GATE_CAM(CLK_CAM_CCU, "camsys_ccu", "cam_sel", 13),
  37         GATE_CAM(CLK_CAM_FAKE_ENG, "camsys_fake_eng", "cam_sel", 14),
  38 };
  39
  40 static const struct of_device_id of_match_clk_mt6779_cam[] = {
  41         { .compatible = "mediatek,mt6779-camsys", },
  42         {}
  43 };
  44
  45 static int clk_mt6779_cam_probe(struct platform_device *pdev)
  46 {
  47         struct clk_onecell_data *clk_data;
  48         struct device_node *node = pdev->dev.of_node;
  49
  50         clk_data = mtk_alloc_clk_data(CLK_CAM_NR_CLK);
  51
  52         mtk_clk_register_gates(node, cam_clks, ARRAY_SIZE(cam_clks),
  53                                clk_data);
  54
  55         return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
  56 }
  57
  58 static struct platform_driver clk_mt6779_cam_drv = {
  59         .probe = clk_mt6779_cam_probe,
  60         .driver = {
  61                 .name = "clk-mt6779-cam",
  62                 .of_match_table = of_match_clk_mt6779_cam,
  63         },
  64 };
  65
  66 builtin_platform_driver(clk_mt6779_cam_drv);